[jira] [Commented] (HDFS-5215) dfs.datanode.du.reserved is not considered while computing available space

["Chris Nauroth (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDFS-5215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14728240#comment-14728240 ] 

Chris Nauroth commented on HDFS-5215:
-------------------------------------

It appears this patch had a side effect of counting {{dfs.datanode.du.reserved}} space towards non-DFS used as reported by {{hdfs dfsadmin -report}}.  Prior to this patch, reserved space did not count towards non-DFS used.  Was this intentional, or was it an unintended side effect?  My opinion is that the definition of non-DFS used should not have changed.  Please let me know your thoughts, and if necessary, we can file a new follow-up jira.

> dfs.datanode.du.reserved is not considered while computing available space
> --------------------------------------------------------------------------
>
>                 Key: HDFS-5215
>                 URL: https://issues.apache.org/jira/browse/HDFS-5215
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>    Affects Versions: 3.0.0, 2.7.0
>            Reporter: Brahma Reddy Battula
>            Assignee: Brahma Reddy Battula
>             Fix For: 2.7.1
>
>         Attachments: HDFS-5215-002.patch, HDFS-5215-003.patch, HDFS-5215-004.patch, HDFS-5215-005.patch, HDFS-5215.patch
>
>
> {code}public long getAvailable() throws IOException {
>     long remaining = getCapacity()-getDfsUsed();
>     long available = usage.getAvailable();
>     if (remaining > available) {
>       remaining = available;
>     }
>     return (remaining > 0) ? remaining : 0;
>   } 
> {code}
> Here we are not considering the reserved space while getting the Available Space.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)